1021110120994 has 16 divisors (see below), whose sum is σ = 1560605848632. Its totient is φ = 500908681728.

The previous prime is 1021110120931. The next prime is 1021110121027. The reversal of 1021110120994 is 4990210111201.

It can be written as a sum of positive squares in 4 ways, for example, as 1013938233025 + 7171887969 = 1006945^2 + 84687^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4781362 + ... + 4990354.

Almost surely, 2^{1021110120994} is an apocalyptic number.

1021110120994 is a deficient number, since it is larger than the sum of its proper divisors (539495727638).

1021110120994 is a wasteful number, since it uses less digits than its factorization.

1021110120994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255141.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 1021110120994 in words is "one trillion, twenty-one billion, one hundred ten million, one hundred twenty thousand, nine hundred ninety-four".